Wow man. Hey, there is only one question here as far as I am concerned. Do you love your wife? Because true love is unconditional. My wife did not cook, do bills, clean, take out trash, show me any kind of affection, no sex, etc.., but I love her. Is she the greatest wife in the world? No. But I love her. Is she even an above average wife? I would have to say no, lol. But I love her. THis is why I tried to save my marriage, and still hope to but am doing it now through me instead of focusing on her. I can remember a million reasons why I fell in love with my wife, but I can only think of one reason I have put up with her this long. I love her.
So then, if you love her then go for it. If you don't I agree, why bother?
At any rate, follow the others advice with the threats.